Understand the moon phases and you can wager a pretty good guess for when the next full moon is just by looking up.

As it continues to brighten, it takes on an oblong, or "gibbous," shape until it ... as the best for basic astronomy in our best beginner's telescope guide. The next moon phase milestone will ...

Ahead of Valentine's Day, prepare to be dazzled by the lunar heart, created by the interplay of light and shadow on our Moon.

The vast valleys of Vallis Schrödinger and Vallis Planck demonstrate the incredible forces that shaped the face of the Moon.

The moon's ascending node (the point in the sky where its orbit crosses the ecliptic from south to north) is moving westward ...

Scientists found that an asteroid impact carved two massive canyons on the moon in minutes. High-speed debris helped shape ...

Scientists proposed an explanation for the formation of Vallis Schrödinger and Vallis Planck near the lunar south pole, which ...

As an astronomer and as co-chair of the International Astronomical Union’s new working group Astronomy from the Moon, I’m on the hook to investigate these thorny questions. We think science ...

Five of the brightest planets will be visible to the naked eye. With help, you may even spot Uranus and Neptune.

Welcome to this month’s edition of “What’s up in the sky?” February has a nice lineup of planets and some eye-catching ...